Changes in the market value of companies The chart above shows the changes in the market value of large American technology companies and other stock companies in this country from the Friday of the previous month to the end of the month (three weeks). The market value of technology companies fell by about $5 trillion, while the market value of 625 other companies grew by $1.3 trillion in the same three weeks.

Changes in the market value of companies The chart above shows the changes in the market value of large American technology companies and other stock companies in this country from the Friday of the previous month to the end of the month (three weeks). The market value of technology companies fell by about $5 trillion, while the market value of 625 other companies grew by $1.3 trillion in the same three weeks.